jetbrains.jetpad.projectional.view.toGwt.ScrollViewMapper.java Source code

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Here is the source code for jetbrains.jetpad.projectional.view.toGwt.ScrollViewMapper.java

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/*
 * Copyright 2012-2016 JetBrains s.r.o
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package jetbrains.jetpad.projectional.view.toGwt;

import com.google.gwt.dom.client.Element;
import com.google.gwt.dom.client.Style;
import com.google.gwt.user.client.DOM;
import jetbrains.jetpad.geometry.Vector;
import jetbrains.jetpad.mapper.Synchronizers;
import jetbrains.jetpad.model.property.WritableProperty;
import jetbrains.jetpad.projectional.view.ScrollView;

class ScrollViewMapper extends CompositeViewMapper<ScrollView, Element> {
    ScrollViewMapper(ViewToDomContext ctx, ScrollView source) {
        super(ctx, source, DOM.createDiv());
    }

    @Override
    protected boolean isDomLayout() {
        return true;
    }

    @Override
    protected void registerSynchronizers(SynchronizersConfiguration conf) {
        super.registerSynchronizers(conf);

        final Style style = getTarget().getStyle();
        conf.add(Synchronizers.forPropsOneWay(getSource().scroll(), new WritableProperty<Boolean>() {
            @Override
            public void set(Boolean value) {
                style.setOverflow(value ? Style.Overflow.HIDDEN : Style.Overflow.VISIBLE);
            }
        }));
        conf.add(Synchronizers.forPropsOneWay(getSource().maxDimension(), new WritableProperty<Vector>() {
            @Override
            public void set(Vector value) {
                style.setProperty("maxWidth", value.x + "px");
                style.setProperty("maxHeight", value.y + "px");
            }
        }));
    }
}